Lekue 4 Cavity Micro Perforated Mini Baguette Baking Pan, Brown Due to the micro perforation the Lekue Round Roll Pan allows air to circulate through the holes to get a much crunchier crust All Lekue baking molds are made of platinum silicone and can go in the oven or microwave s Platinum silicone molds are treated with special nonstick so only need to oil them before first use to activate the nonstick properties 100% platinum silicone, resistant to high temperatures Oven, freezer and dishwasher safe for easy cleaning